METHOD OF CHOOSING PLOT LOCATION FOR PERENNIAL CROP ON MINERAL SOILS Russian patent published in 2017 - IPC A01B79/02 G01N33/24 

FIELD: agriculture.

SUBSTANCE: in method, the depth of the root system h of a perennial crop on mineral soils is established. In winter, works on snow retention with the preliminary installation of cryopedometers are carried out, the soil freezing depth is established to observe the groundwater level measured relative to the lower freezing boundary. Wells are made, the granulometric composition of the soil is determined with the organoleptic method, the value of H, m is determined relative to the lower soil freezing boundary, the change in H for soil freezing from 0 to h is determined, and by its magnitude and granulometric composition, the soil heaving degree is determined. Wherein the dusty-sandy soil at H<0.5 m is referred to as medium-heaving, at H=0.5-1.0 m - as weakly-heaving, at H> 1.0 m - as almost non-heaving; the sandy loam soil at H <0.5 m is referred to as strongly heaving, at H=0.5-1.0 m - as medium-heaving, at H=1.0-1.5 m - as weakly-heaving, and at H>1.5 m - as almost non-heaving; the loamy ground soil at H<1.0 m is referred to as strongly heaving, at H=1.0-1.5 m - as medium-heaving, at H=1.5-2.5 m - as weakly-heaving, and at H> 2.5 m - as almost non-heaving; the clay soil at H<1.5 m is referred to as strongly heaving, at H=1.5-2.0 m - as medium-heaving, at H=2.0-3.0 m - as weakly-heaving, and at H>3.0 m - as almost non-heaving.

EFFECT: excluding or reducting the influence of frost soil heaving on the productivity of a perennial crop during the entire regulatory period of its growth in one place.

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